Improvement in apparatus for removing oils from animal and vegetable substances



G. N. PHELPS.

Apparatus for Removing Oils From Animal and Vegetable Substances.

N0.|5|,O50. Patented May19,l874.

wnussszs: 4 I mvemn N WZQ ATTORNEYS.

UNITED STATES PATENT Orricn.

f GEORGE N. rnntrs, or Bno0 LYN,"NEw YORK, ASSIGNOR :ro HIMSELF .AND CONRAD BBAKER, JR, OF NEW YORK CITY.

-' IMPROVEMENT IN APPARATUS FOR REMOVING .OILS FROM ANIMAL AND VEGETABLE SUBSTANCES.

Specification forming part of Letters Patent. No. 151,050, dated May 19, 1874; application filed April 18, 1874.

- To all whom it may concern: v

Be it known that I, GEORGE N. PHELPS, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful -.Improvement in Apparatus for Extracting .Oils, of which the following is a specification:

My invention has for its object to furnish an improved apparatus for removing oils, fats,

resins, &c., from solid material, by treating it with bisulphide of carbon or other suitable solvent, and which shall be simple in construction, convenient in use, and effective in operation. V

The invention consists in the arrangement of the endless chains of buckets, the shelves,

the semi-cylindrical plates, and the vertical plate, in connection with each other and the case or the machine, to form a zigzag passage through which the solid material may be carried against a stream of a solvent; in the strainer-buckets, in combination with the end less chains, and the shelves and plates; in the strainers formed in the upper shelves for draining off the solvent after the solid matter has been carried through said solvent; and in the combination of one or more coils of heatingpipe with the upper shelves and the endless chain of buckets, as herein after fully described.

A represents a high, wide, and thin or shallow case, the size of which must depend upon the amount of work required to be done by the apparatus. B is a series of horizontal shelves, the alternate ends of whieh are connected by semi-cylindrical plates 11 as shown in Fig. 1, so as to form a continuous passage from the bottom to the top of the case A. At one side edge of the case A the semicircular plates 11 are placed close to the edge wall. At the other side edge of the case A the semicircular plates 11 are placed at a little distance from the edge wall, and a vertical plate, 0, is

reference indicate corresecured to them, so as to form a vertical passage of the same size as, and being a continuation of,the other or zigzag passage. To the case A, at the free ends of the shelves B and plate 0, are pivoted pairs of pulleys D, around which pass endless chains E. To the chains E at suitable distances apart are attached buckets F, which are formed of perforated sheet metal, or by attaching wire-gauzeto a metallic frame, so as to allow the liquid to pass through while carrying the solid material along the endless passage. The oil is extracted from the solid material by bisulphide of carbon or other suitable solvent, which is introd uccd through the inlet-pipe a and withdrawn when saturated, or nearly so, through the outlet (1 which is placed in the lowest compartment of the zigzag passage, near the lower end of the vertical part of said passage. The inflow of the solvent should be so regulated as to fill the lower part of the case nearly to the inlet a The solid material is introduced through a feed-spout, G, in the case A, a little higher than the inlet a is carried by the buckets F down through the solvent, and up from one shelf to another through the zigzag passage, and is discharged through the dis-.

charge-spout H. The upper shelf 13 is inclined, to obtain space for the mouth of the dischargespout H, beneath the upper end of the sa d shelf, so that, as the buckets F'push the solid material from the upper end of said inclined shelf, it may drop into the said spout and pass out of the machine. Some or all of the shelves B above the water-line of the machine have openings formed in them, closed with finely perforated plates or wire-gauze W, to allow the solvent draining from the solid material to flow through, and thus pass back to the lower part of the machine. One or more of the shafts of the chain-pulleys D, according to the length of the chains, passthrough the casing A, and have screw-wheels I attached to them, the

' screw-teeth of which mesh into the thread of .an endless screw, J, which may be driven by a band and pulleys, or other suitable gearing from any convenient power. In the case A above the water-line of the solvent are formed openings, one or more, in which are inserted pipes K, through which the vapors escape,

which vapors are designed tobe eonductedr to rises above the water-line of the solvent, and.

thus removes. any oil that may remain in it after passing through the solvent. The solvent and the solid material pass through the lower part of the machine in opposite directions, and the solvent flows out as it meets the solid so that the solvent may be as near saturationv as possil'ewhen it" flows from the machine. i

The solvent and oil, asthey escape from the machine, are conducted to a still, where they are separated, and the solvent may be again used.

I am aware ot the existence of a patent j granted to E. S. Hutchinson, April 30, 1872, No; 126,300, and I disclaim as my invention 1 anything shown and claimed insaid: patent;

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The arrangement of the endless chain of buckets E F, the pulleys D, the shelves B, the semi cylindrical platesbhand the vertical plate '0', in connection with each other'and' the case A, substantially as herein shown and described, to form a zigzag passage, through ,whieh the solid material may be carried,

against a stream of a solvent, as set forth.

2. The strainer-buckets F, in combination with the endless chains E, and the shelves B :and plates I1 substantially asherei'n shown and described. 1 3. The strainers b formed in the upper shelves B, for draining oil the solvent after the solid matter has been carried through said ,a solvent, substantially as herein shown and described.

4. The combination; of one or more. coilsof heating-pipes, L, with: the upper shelves B and endless chain of buckets E F, substantially as herein shown and described.

GEORGE N. PHELPS.

Witnesses JAMES T. GRAHAM,

T. B. Mosnnn. 

